Modoc, IL Weather Forecast & Current Conditions

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Modoc, IL Weather Maps

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Modoc Weather Map
UTC Time: 10/28/2026, 06:22
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Modoc, IL Regional Weather

Expires:202610280700;;839355
ASUS43 KLOT 280612
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 AM CDT WED OCT 28 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
  REPORT WEATHER SUCH AS PRECIPITATION OR FOG.


ILZ079-100>102-280700-
SOUTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          CLEAR     49  47  92 CALM      30.21S TC  10           
BELLEVILLE     PTCLDY    50  49  97 CALM      30.19S TC  10           
CAHOKIA*       CLEAR     48  47  96 CALM      30.20S TC   9           
SPARTA*        CLEAR     52  50  95 CALM      30.23S TC  11           
$$


SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Modoc, IL

Overnight
Clear
52°11°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
50%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Mon-Mon Night
Thunderstorms
72°22°
50%
Tuesday
Rain Showers
72°22°
50%

Night: Clear. Near steady temperature in the lower 50s. Light and variable winds, becoming south around 5 mph.

Monroe County, IL

Overnight
Clear
48°9°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Rain Showers
70°/ 55° 21°/ 13°
60%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Thunderstorms
72°/ 55° 22°/ 13°
60%
Tuesday
Rain Showers
70°21°
50%

Night: Mostly clear. Lows in the upper 40s. Light and variable winds, becoming south around 5 mph.

Perryville, MO

Tonight
Cloudy
48°9°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
75°/ 55° 24°/ 13°
50%
Sunday
Rain Showers
70°/ 55° 21°/ 13°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%

Night: Partly cloudy this evening, then clearing. Patchy fog after midnight. Lows in the upper 40s. South winds around 5 mph.

Farmington, MO

Overnight
Clear
45°7°
0%
Wednesday
Sunny
78°/ 48° 26°/ 9°
0%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Friday
Mostly Cloudy
78°/ 55° 26°/ 13°
0%
Saturday
Rain Showers
72°/ 52° 22°/ 11°
60%
Sunday
Rain Showers
68°/ 52° 20°/ 11°
50%
Mon-Mon Night
Thunderstorms
72°22°
50%
Tuesday
Rain Showers
70°21°
50%

Night: Clear. Lows in the mid 40s. Light and variable winds.

Alton, IL

Overnight
Clear
52°11°
0%
Wednesday
Sunny
80°/ 55° 27°/ 13°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
60%
Sunday
Rain Showers
70°/ 55° 21°/ 13°
50%
Monday
Thunderstorms
72°/ 55° 22°/ 13°
60%
Tuesday
Rain Showers
70°21°
50%

Night: Mostly clear. Lows in the lower 50s. South winds around 5 mph.

Jefferson County, MO

Overnight
Clear
48°9°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Rain Showers
70°/ 55° 21°/ 13°
60%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Thunderstorms
72°/ 55° 22°/ 13°
60%
Tuesday
Rain Showers
70°21°
50%

Night: Mostly clear. Lows in the upper 40s. Light and variable winds, becoming south around 5 mph.

Litchfield, IL

Overnight
Clear
48°9°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
80°/ 55° 27°/ 13°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
70°/ 55° 21°/ 13°
50%
Sun Night
Rain Showers
52°11°
20%
Monday
Thunderstorms
70°/ 55° 21°/ 13°
50%

Night: Mostly clear. Lows in the upper 40s. East winds around 5 mph late this evening, becoming light and variable.

Pinckneyville, IL

Tonight
Cloudy
48°9°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
72°/ 55° 22°/ 13°
50%
Sunday
Rain Showers
70°/ 55° 21°/ 13°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%
Tuesday
Rain Showers
72°22°
50%

Night: Partly cloudy this evening, then clearing. Patchy fog after midnight. Lows in the upper 40s. Calm winds.

Carbondale, IL

Tonight
Cloudy
48°9°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
75°/ 55° 24°/ 13°
50%
Sunday
Rain Showers
70°/ 55° 21°/ 13°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%
Tuesday
Rain Showers
72°22°
50%

Night: Partly cloudy this evening, then clearing. Patchy fog after midnight. Lows in the upper 40s. South winds around 5 mph this evening, becoming light and variable.

Centralia, IL

Overnight
Clear
52°11°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
50%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Thunderstorms
72°/ 55° 22°/ 13°
50%

Night: Mostly clear. Near steady temperature in the lower 50s. Southeast winds around 5 mph late this evening, becoming light and variable.

Alton, MO

Overnight
Clear
52°11°
0%
Wednesday
Sunny
80°/ 55° 27°/ 13°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
60%
Sunday
Rain Showers
70°/ 55° 21°/ 13°
50%
Monday
Thunderstorms
72°/ 55° 22°/ 13°
60%
Tuesday
Rain Showers
70°21°
50%

Night: Mostly clear. Lows in the lower 50s. South winds around 5 mph.

Washington, MO

Overnight
Clear
50°10°
0%
Wednesday
Sunny
78°/ 55° 26°/ 13°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Friday
Mostly Cloudy
78°/ 55° 26°/ 13°
0%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
50%
Sunday
Rain Showers
68°/ 52° 20°/ 11°
50%
Monday
Thunderstorms
72°/ 52° 22°/ 11°
60%
Tuesday
Rain Showers
68°20°
50%

Night: Mostly clear. Lows around 50. South winds around 5 mph.

Cape Girardeau, MO

Tonight
Cloudy
48°9°
0%
Wednesday
Sunny
78°/ 50° 26°/ 10°
0%
Thursday
Sunny
80°/ 52° 27°/ 11°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
72°/ 55° 22°/ 13°
50%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%

Night: Partly cloudy this evening, then clearing. Patchy fog after midnight. Lows in the upper 40s. Calm winds.

Marble Hill, MO

Tonight
Cloudy
45°7°
0%
Wednesday
Sunny
78°/ 48° 26°/ 9°
0%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
60%
Sunday
Rain Showers
70°/ 52° 21°/ 11°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%

Night: Partly cloudy this evening, then clearing. Patchy fog after midnight. Lows in the mid 40s. Southwest winds around 5 mph this evening, becoming light and variable.

Jonesboro, IL

Tonight
Mostly Cloudy
48°9°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
78°/ 52° 26°/ 11°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
72°/ 55° 22°/ 13°
50%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%
Tuesday
Rain Showers
72°22°
50%

Night: Mostly cloudy this evening, then clearing. Patchy fog after midnight. Lows in the upper 40s. Calm winds.

West Frankfort, IL

Tonight
Cloudy
48°9°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Friday
Sunny
80°/ 58° 27°/ 14°
0%
Sat Night
Rain Showers
55°13°
50%
Sunday
Rain Showers
70°/ 55° 21°/ 13°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%
Tuesday
Rain Showers
72°22°
50%

Night: Partly cloudy this evening, then clearing. Patchy fog after midnight. Lows in the upper 40s. Calm winds.

Herrin, IL

Tonight
Mostly Cloudy
48°9°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
80°/ 52° 27°/ 11°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
75°/ 55° 24°/ 13°
50%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%
Tuesday
Rain Showers
72°22°
50%

Night: Mostly cloudy this evening, then clearing. Patchy fog after midnight. Lows in the upper 40s. South winds around 5 mph this evening, becoming light and variable.

Mount Vernon, IL

Tonight
Cloudy
48°9°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
72°/ 55° 22°/ 13°
50%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%
Tuesday
Rain Showers
72°22°
50%

Night: Partly cloudy this evening, then clearing. Patchy fog after midnight. Lows in the upper 40s. Calm winds.

Piedmont, MO

Tonight
Cloudy
45°7°
0%
Wednesday
Sunny
78°/ 48° 26°/ 9°
0%
Thursday
Sunny
82°/ 48° 28°/ 9°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Rain Showers
72°/ 52° 22°/ 11°
60%
Sunday
Rain Showers
70°/ 52° 21°/ 11°
50%
Monday
Rain Showers
72°/ 52° 22°/ 11°
50%
Tuesday
Rain Showers
72°22°
50%

Night: Partly cloudy this evening, then becoming clear. Patchy fog after midnight. Lows in the mid 40s. Southeast winds around 5 mph this evening, becoming light and variable.

Cairo, IL

Tonight
Mostly Cloudy
50°10°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
80°/ 52° 27°/ 11°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Rain Showers
75°/ 58° 24°/ 14°
50%
Sunday
Rain Showers
70°/ 55° 21°/ 13°
50%
Monday
Rain Showers
72°/ 58° 22°/ 14°
50%
Tuesday
Rain Showers
72°22°
50%

Night: Mostly cloudy this evening, then clearing. Patchy fog after midnight. Lows around 50. Calm winds.

Names listed above may include county names.

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